Home / 13,719.12-20,578.77-4,954.02

Finding the Fourth Proportional to 13,719.12, 20,578.77 and 4,954.02

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Solution

The fourth proportional to 13,719.12, 20,578.77 and 4,954.02 is: 7,431.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.12 : 20,578.77 = 4,954.02 : x
  2. Step 2: Convert to fraction form
    13,719.12/20,578.77 = 4,954.02/x
  3. Step 3: Cross multiply
    13,719.12x = 20,578.77 × 4,954.02
  4. Step 4: Simplify right side
    13,719.12x = 101,947,638.16
  5. Step 5: Solve for x
    x = 101,947,638.16/13,719.12
  6. Step 6: Final answer
    x = 7,431.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.